Johannes von Hanstein

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Johannes Ludwig Emil Robert von Hanstein (born May 15, 1822 in Potsdam , † August 27, 1880 in Bonn ) was a German botanist . Its official botanical author abbreviation is “ Hanst. "

Live and act

Johannes von Hanstein, son of Ludwig Hanstein (1772–1830), chief preacher at the Nikolaikirche in Potsdam , and Emilie Sello (1792–1870), learned gardening; he attended the Royal Gardening College at the Wildlife Park near Potsdam from 1840–44 . He then studied science in Berlin and received his doctorate in 1848. He taught at several Berlin schools and qualified as a lecturer in botany at the University of Berlin in 1855 . In 1861 he was custodian of the royal herbarium, in 1865 professor of botany in Bonn and director of the botanical garden there and the botanical institute. In 1864 he was elected a member of the Leopoldina . In 1879/80 he was the rector of the university.

The botanist mainly worked in the field of microscopic anatomy and morphology of plants and researched the development of germs in monocotyledonous and dicotyledonous flowering plants. He also wrote papers on the fertilization and development of ferns.

In 1857 he married Helene (1834–1890), daughter of Julie and the zoologist Christian Gottfried Ehrenberg . They had three sons, including the writers Adalbert and Otfrid .

His older brother Hermann von Hanstein (1809–1878), a student of Wilhelm Herbig at the Berlin Academy, became a painter.

Honor taxon

The plant genus Hansteinia Oerst. the plant family of the acanthus plants (Acanthaceae) has been named after him.

Works

Johannes von Hanstein provided important work on the anatomy and morphology of plants and wrote:

  • Investigations into the construction and development of the tree bark (Berlin 1853);
  • About the connection between the position of the leaves and the construction of the dicotyledonous wooden ring (Berlin 1858);
  • Experiments on guiding the juice through the bark (Berlin 1860);
  • The milk juice vessels and the related organs of the bark (Berlin 1864);
  • On the evolutionary history of the genus Marsilia (Berlin 1862–64, 2 vols.);
  • Fertilization and development of the genus Marsilia (Berlin 1865);
  • Pilulariae globuliterae generatio cum Marsilia comparata (Bonn 1866);
  • Overview of the natural plant system (Bonn 1867);
  • About the organs of resin and mucus secretion in the leaf buds (Botanische Zeitung 1868);
  • The vertex cell group in the vegetation point of the phanerogams (Bonn 1869);
  • The development of the germ of the monocot and dicot (1870),
  • The Parthenogenesis of the Caelebogyne Ilicifolia: communicated after observations made jointly with Alexander Braun . Bonn, 1877.
  • Some features from the biology of protoplasm (1880) and
  • Contributions to the general morphology of plants (1882) in the anthology published by him, treatises from the field of morphology and physiology ; also
  • Christian Gottfried Ehrenberg , a day's work in the field of nature research (Bonn 1877).

swell

Individual evidence

  1. Haustein: 2) Johannes Ludwig Emil Robert von Hanstein , on digital-sammlungen.de
  2. Short biography: Hermann von Haustein (* 1809 in Löwenberg; † 1878 in Berlin), genre, landscape and portrait painter, miniaturist, watercolorist, porcelain painter, pupil of Wilhelm Herbig in Berlin, alternately active in Berlin and Düsseldorf, regularly from 1828-1877 represented at the Berlin Academy exhibitions.
  3. Lotte Burkhardt: Directory of eponymous plant names . Extended Edition. Botanic Garden and Botanical Museum Berlin, Free University Berlin Berlin 2018. [1]

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